The National Highway Traffic Safety Administration has launched a preliminary evaluation over rear axles on 2005 Dodge Ram pickups that lock up sans warning while driving, causing the trucks to spin out at high speeds in some incidents. NHTSA received 15 complaints of mechanical failure.
Seven cases occurred at speeds of 50 mph (80 kph) or more, according to a post at the NHTSA’s Web site. The agency said that a preliminary evaluation was launched to assess the scope, frequency and safety-related consequences of the alleged defect.
There were no reports of crashes or injuries tied to the Dodge Ram. The investigation covers about 260,000 vehicles. NHTSA said that at least two of the complaints from drivers said the lockup of the rear axle caused the truck to spin.
Consumers likewise reported that loose pinion nuts caused the rear differential to lock up, or made the drive shaft separate from the differential, NHTSA said.
The agency said that drivers were saying that there was little noise or other warning before the lockups or separations occurred. Chrysler Group said in statement that is cooperating fully with NHTSA on the investigation.